⚡️ MakerFocus 4pcs 18650 Charging Board: Dual USB 5V 2.4A Mobile Power Bank Module with Overcharge/Overdischarge Protection - DIY USB Power Bank Board Review

With this product I was able to revive a 1s lipo battery that had a bad circuit board. Works with 18650 and other Type 1s (3.7V) sources! The display's backlight is very bright. And directly in front of it, the viewing angle is limited. But overall it works great!

Great little device. I could easily find only one that includes Lightning. I have tried them with different types of 3.7v batteries, from 1860s to flat lithium ion, they have worked great. One star removed because one of the 4 was DOA and its indicator flashed when the battery was connected. Otherwise great product!

Received this item recently and it is exactly what I wanted. It's nice to have the many ports that this product comes with. The positive and negative poles are incorrectly labeled in the photo. Follow what's on the board and you'll be fine. The ports are a bit tight when first used, but after that they work fine. This was my first soldering experience and working with 18650 cells and getting the board and putting it together was amazing. I am very happy with my purchase and would otherwise buy…

As expected and it's nice to have a more detailed way of measuring the remaining charge in the batteries e.g. B. the actual percentage. I'm glad I found this on Revain, but unfortunately Revain no longer sells power bank 18650/26650 batteries. You'll have to remove these batteries from your old device to use them in a new way, or get lithium-ion batteries elsewhere. Capacity in the new system so that it is automatically calibrated.

My wife is the laziest woman in the world who never wants to charge her phone in the wall and keeps asking me to plug it in no matter if I'm busy or not . Well! Then I found this charger for my little project. The most powerful power bank that can charge your phone over 20 times and your iPad over 10 times. Thanks for the QC (Quick Charge Circuit) + USB-C connector, which also charges the power bank faster. Note: The seller needs to correct the specifications, the maximum input voltage: 3-4.2V.